Viaduct reconstruction method

Abstract

The invention discloses a transformation method of an elevated bridge. The elevated bridge comprises a first original bridge pier and a second original bridge pier which are arranged in a spaced mode. An original cover beam is connected between the first original bridge pier and the second original bridge pier in a stretching mode. The method includes the following steps of building a first transformed bridge pier and a second transformed bridge pier, specifically, the first transformed bridge pier and the second transformed bridge pier are arranged in the spaced mode, and the distance between the first transformed bridge pier and the second transformed bridge pier is larger than that between the first original bridge pier and the second original bridge pier; building a transformed cover beam connected between the first transformed bridge pier and the second transformed bridge pier in a stretching mode, specifically, the transformed cover beam wraps the original cover beam; and detaching the first original bridge pier and the second original bridge pier. Through the adoption of the transformation method of the elevated bridge, the scheme that a newly built road or elevated bridge passes an existing elevated bridge underneath can be out of restriction even when a gap between two bridge piers of the existing elevated bridge is too small, and smooth layout of the newly built road or elevated bridge is achieved.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a reconstruction method for viaducts. Background technique [0002] Due to the sharp increase in the number of motor vehicles in our country, the supply of road traffic facilities has long been unable to meet the rapidly growing traffic demand. In order to solve traffic problems, our country has carried out a large number of special traffic planning and road construction. Many new road projects need to be connected or crossed with existing roads or bridges to further improve the road network structure to relieve traffic pressure. [0003] When designing new roads or viaducts, the scheme that the new roads or viaducts pass under the existing viaducts is often adopted. However, in many cases, the gap between the two piers of the existing viaduct is too small to meet the clearance and linear layout design specification requirements of the newly built road or the viadu...

AI Technical Summary

Problems solved by technology

However, in many cases, the gap between the two piers of the existing viaduct is too small to meet the requirements of the clearance and linear layout design specifications for new roads or viaducts passing under the existing viaduct.

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